Ceramic Rocket Nozzles

Ceramic abstracts section the report consists of two photographs microfilm 1 oo b.

Ceramic rocket nozzles.

This is what propels the rocket skyward. The hfc sic composite ceramic was used as the rocket nozzle insert and showed an enhanced ablation rate at the throat to the existing ablative material graphite. In addition cni designs and develops specialty ceramic welding nozzles and cups. It is a brittle ceramic though with reduced impact resistance compared to some high temperature materials.

Applications under consideration at the nasa marshall space. A rocket nozzle does essentially the same thing with the combustion gasses from the motor. A rocket engine nozzle is a propelling nozzle usually of the de laval type used in a rocket engine to expand and accelerate the combustion gases produced by burning propellants so that the exhaust gases exit the nozzle at hypersonic velocities. Figure 10 26a compares nozzle noise profiles dba versus v 0 m s 1 fpm for plain circular square and rectangular wlr 0 25 nozzles the curves are remarkably similar each showing dramatic.

In this project mr d designed and analyzed a variety of braid reinforced cmc thrusters to replace the current metallic thrusters in a rocket motor nozzle throat. An example of the importance of the thermal structural modeling that mr d performs for ceramic rocket nozzle development is shown in figures 1 through 3 below. The motor features a new low cost low erosion ceramic rocket nozzle throat a new low cost high performance propellant and a lighter weight motor case and insulator to increase missile range. It was this material that broke on the space shuttle columbia due to an insulation strike.

Welding nozzles torch bodies collets. The rocket pumps and a combustion chamber generates high pressure a few hundred atmospheres the nozzle turns the static high pressure. Lvhv exhaust nozzles can generate very high noise levels. Special tig torch bodies and any molded rubber to metal parts.

Options are limited but actions can be taken to help reduce nozzle noise. The specific contents of this study can be summarized as follows. Cni has been supplying tig torches and accessories worldwide for over 45 years. In 1975 nasa published sp 8115 specifically about solid rocket motor nozzles.

Typically the nozzle in a rocket and the solid plug at the top of the rocket motor s fuel grain is a rammed hand pounded with a mallet or pressed with a hydraulic or mechanical rocket press mixture of wax. Describes progress made in developing of segmented ceramic rocket. We stock a vast selection of tig welding equipment accessories including. The environment of a solid rocket nozzle is indeed very harsh.